In-n-out burger

Okay, so I've always wondered why I feel very sick after eating at In-n-out burger. I haven't eaten there in a long time but since I would always feel sick afterwards, I decided to only get a grilled cheese sandwich and have a few fries. When I would do this, I didn't get sick. Well, I just found out the culprit of the pain....it's their beef. Their beef is 60/40! Seriously, my body must have been working overtime trying to digest all of that fat! Looks like I will stay away from their burgers for the long term =)